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science MCQs quiz test questions with answers
Which region of the Moon is known as “Dark side”?
(A) Equator
(B) South Pole
(C) North Pole
(D) Great Spot
answer : (B) South Pole
The Sun’s mass mainly consists of
(A) hydrogen
(B) nitrogen
(C) carbon dioxide
(D) helium
answer : (A) hydrogen
The second main constituent of the Sun’s mass is
(A) argon
(B) nitrogen
(C) carbon dioxide
(D) helium
answer : (D) helium
What play an important role in determining the hottest temperature the human body can tolerate?
(A) altitude
(B) humidity
(C) pollution
(D) type of gasses
answer : (B) humidity
Transformers are used to change ________ voltage levels.
(A) alternating current
(B) direct current
(C) circuit
(D) none of these
answer : (A) alternating current
According to the scientists, how many galaxies are there in the universe?
(A) 10 million
(B) 100 million
(C) 10 billion
(D) 100 billion
answer : (D) 100 billion
What is the maximum temperature that the human skin can endure without getting blisters?
(A) 40°C
(B) 60°C
(C) 80°C
(D) 100°C
answer : (A) 40°C
What is the most abundant form of matter in the universe?
(A) Plasma
(B) Liquid
(C) Gas
(D) Solid
answer : (A) Plasma
What type of rocks are formed when continental plates collide with each other?
(A) igneous rocks
(B) sedimentary rocks
(C) metamorphic rocks
(D) marble and onyx
answer : (C) metamorphic rocks
The atmosphere of the planet Mars is mostly consists of
(A) Hydrogen
(B) Chlorine
(C) Nitrogen
(D) Carbon dioxide
answer : (D) Carbon dioxide
What height is known as “Death zone” where oxygen is insufficient for human life?
(A) 7500 meter
(B) 8000 meter
(C) 8500 meter
(D) 9000 meter
answer : (B) 8000 meter
The position of an element in the Periodic Table is determined by its ________ number.
(A) Electron
(B) Proton
(C) Neutron
(D) Positron
answer : (B) Proton
The atmosphere of Mars is mainly
(A) Oxygen
(B) Nitrogen
(C) Hydrogen
(D) Carbon dioxide
answer : (D) Carbon dioxide
The atmosphere of the Earth is mainly Nitrogen and
(A) Oxygen
(B) Carbon dioxide
(C) Hydrogen
(D) Argon
answer : (A) Oxygen
What play the most important role in regulating temperature and determining climate on the Earth?
(A) Oceans
(B) Mountains
(C) Deserts
(D) Forests
answer : (A) Oceans
How many galaxies are there in the universe?
(A) 10 million
(B) 100 million
(C) 10 billion
(D) 100 billion
answer : (D) 100 billion
Which of the following is a water-soluble vitamin?
(A) Vitamin A
(B) Vitamin C
(C) Vitamin D
(D) Vitamin K
answer : (B) Vitamin C
Which part of the donor’s eye is utilized in eye donation?
(A) Cornea
(B) Lens
(C) Retina
(D) None of these
answer : (A) Cornea
What is the longest bone in the human body?
(A) Femur
(B) Arm
(C) Leg
(D) None of these
answer : (A) Femur
Chemical composition of Laughing gas is:
(A) Nitrogen + Hydrogen
(B) Nitrogen + Oxygen
(C) Nitrogen + Carbon
(D) None of these
answer : (B) Nitrogen + Oxygen
(A) Oxygen
(B) Nitrogen
(C) Hydrogen
(D) Carbon dioxide
answer : (D) Carbon dioxide
The atmosphere of the Earth is mainly Nitrogen and
(A) Oxygen
(B) Carbon dioxide
(C) Hydrogen
(D) Argon
answer : (A) Oxygen
What play the most important role in regulating temperature and determining climate on the Earth?
(A) Oceans
(B) Mountains
(C) Deserts
(D) Forests
answer : (A) Oceans
How many galaxies are there in the universe?
(A) 10 million
(B) 100 million
(C) 10 billion
(D) 100 billion
answer : (D) 100 billion
Which of the following is a water-soluble vitamin?
(A) Vitamin A
(B) Vitamin C
(C) Vitamin D
(D) Vitamin K
answer : (B) Vitamin C
Which part of the donor’s eye is utilized in eye donation?
(A) Cornea
(B) Lens
(C) Retina
(D) None of these
answer : (A) Cornea
What is the longest bone in the human body?
(A) Femur
(B) Arm
(C) Leg
(D) None of these
answer : (A) Femur
Chemical composition of Laughing gas is:
(A) Nitrogen + Hydrogen
(B) Nitrogen + Oxygen
(C) Nitrogen + Carbon
(D) None of these
answer : (B) Nitrogen + Oxygen
